This sampler makes it possible to take a sample that is perfectly representative of the contents of a classic 200L drum.
During the descent, all the slower as the liquid is viscous, in the drum, it regularly takes all the layers of liquid. The closure of the base of the tube is controlled by simple pressure on the bottom.
Exit from the tube with perfect wiping of the outside, during the ascent, thanks to its scraper ring adapted to the diameter of the bung.